Seachem Reef Builder Alkalinity Supplement

Seachem Reef Builder is a powdered alkalinity supplement formulated to raise and maintain carbonate alkalinity in reef aquariums without immediately impacting pH. It supports healthy coral growth and stable water chemistry.

• Raises and maintains reef alkalinity
• Supports coral growth and skeletal development
• Helps stabilise aquarium water chemistry
• Does not cause rapid pH spikes
• Suitable for marine and reef aquariums
• Easy-to-dose powdered formula

A key supplement for maintaining a stable and thriving reef system.